Question

我想备份我的数据库并使用php将其邮寄到我的电子邮件ID。我找到了一个脚本来备份我的数据库并以邮政形式邮寄给我但是当我尝试执行脚本时，它工作正常，但邮件不在我的收件箱中。这是脚本：

<?php
$db_host="localhost";   //mysql host  
$db_user="*******";  //databse user name
$db_pass="*******";  //database password
$db_name="******";  //database name
$tables="*";   // use * for all tables or use , to seperate table names
$email="*******";     //your email id
///////////////////////////////////////////////////////////////////////////////////////////

/////////don't need to change bellow //////

backup($db_host,$db_user,$db_pass,$db_name,$tables,$email);
function backup($db_host,$db_user,$db_pass,$db_name,$tables = '*',$email)
{

  $con= mysql_connect($db_host,$db_user,$db_pass);
  mysql_select_db($db_name,$con);

  //get all of the tables
  if($tables == '*')
  {
    $tables = array();
    $result = mysql_query('SHOW TABLES');
    while($row = mysql_fetch_row($result))
    {
      $tables[] = $row[0];
    }
  }
  else
  {
    $tables = is_array($tables) ? $tables : explode(',',$tables);
  }

  //cycle through
  foreach($tables as $table)
  {
    $result = mysql_query('SELECT * FROM '.$table);
    $num_fields = mysql_num_fields($result);

    $return.= 'DROP TABLE '.$table.';';
    $row2 = mysql_fetch_row(mysql_query('SHOW CREATE TABLE '.$table));
    $return.= "\n\n".$row2[1].";\n\n";

    for ($i = 0; $i < $num_fields; $i++) 
    {
      while($row = mysql_fetch_row($result))
      {
        $return.= 'INSERT INTO '.$table.' VALUES(';
        for($j=0; $j<$num_fields; $j++) 
        {
          $row[$j] = addslashes($row[$j]);
          $row[$j] = ereg_replace("\n","\\n",$row[$j]);
          if (isset($row[$j])) { $return.= '"'.$row[$j].'"' ; } else { $return.= '""'; }
          if ($j<($num_fields-1)) { $return.= ','; }
        }
        $return.= ");\n";
      }
    }
    $return.="\n\n\n";
  }

  //save file
  $filename='db-backup-'.time().'-'.(md5(implode(',',$tables))).'.sql';
  $handle = fopen($filename,'w+');
  fwrite($handle,$return);
  fclose($handle);
  compress($filename);
  send_mail($filename.".zip",$email);
}

function send_mail($filepath,$email)
{

$from = "Backup <cepheisys.com/mac>";
$subject = "Database backup";
$message="This attachment contains the backup of your database.";
$separator = md5(time());

// carriage return type (we use a PHP end of line constant)
$eol = PHP_EOL;

// attachment name
$filename = "backup.zip";

//$pdfdoc is PDF generated by FPDF
$attachment = chunk_split(base64_encode(file_get_contents($filepath)));

// main header
$headers  = "From: ".$from.$eol;
$headers .= "MIME-Version: 1.0".$eol; 
$headers .= "Content-Type: multipart/mixed; boundary=\"".$separator."\"";

// no more headers after this, we start the body! //

$body = "--".$separator.$eol;
$body .= "Content-Transfer-Encoding: 7bit".$eol.$eol;
$body .= "This is a MIME encoded message.".$eol;

// message
$body .= "--".$separator.$eol;
$body .= "Content-Type: text/html; charset=\"iso-8859-1\"".$eol;
$body .= "Content-Transfer-Encoding: 8bit".$eol.$eol;
$body .= $message.$eol;

// attachment
$body .= "--".$separator.$eol;
$body .= "Content-Type: application/octet-stream; name=\"".$filename."\"".$eol; 
$body .= "Content-Transfer-Encoding: base64".$eol;
$body .= "Content-Disposition: attachment".$eol.$eol;
$body .= $attachment.$eol;
$body .= "--".$separator."--";

// send message
if (mail($email, $subject, $body, $headers)) {
    echo "Your backup sent to your email id";
    header("refresh: 1; main.php");
} else {
    echo "Oops mail can not be send";
}
}
function compress($filepath)

     {

         $zip = new ZipArchive();
  $file=$filepath.".zip";
 if($zip->open($file,1?ZIPARCHIVE::OVERWRITE:ZIPARCHIVE::CREATE)===TRUE)
 {
   // Add the files to the .zip file
   $zip->addFile($filepath);

   // Closing the zip file
   $zip->close();
 }
     }

Answer 1

我这样做是为了一个爱好，所以任何输入都是谦卑的。

$row[$j] = ereg_replace("\n","\\n",$row[$j]); 是折旧的，应该用以下内容替换：

$pattern = '/\\\n/';
$replacement = '\\\\\n';
$row[$j] = preg_replace($pattern, $replacement, $row[$j] );

我无法让您的代码有效地发送电子邮件，所以我只是通过电子邮件发送了自己的链接。我必须按照链接并通过ftp登录，但它就在那里。 LMK，如果你有任何意见。

我在代码上返回了路径，然后将文件位置添加到我的数据库::

function Add_BU_to_Database ($filename){
    $conn = db_connect(); //connects to my db
    $BU_Hist_num = General_Get_num('BU_History','BU_Hist_num'); //gets primary field
    $now = time(); 
    $BU_Add_Qry = $conn->query("insert into BU_History 
    (BU_Hist_num,BU_Path,BU_Time_Add,BU_Time_Del,BU_Status)                 
    Values('".$BU_Hist_num."','".$filename."','".$now."','','Active')");
}//end function`

然后我更新了页面顶部的ini，这样就不会超时::

ini_set('memory_limit', '1G'); 
ini_set('max_execution_time', 300);

然后我写了剩下的代码来删除旧文件并在新的php文件上更新数据库::

<?php
ini_set('memory_limit', '1G'); 
ini_set('max_execution_time', 300);

$conn = db_connect();
$AweekAgo = time()-1209600;

$DBDeletionQry = $conn->query("select * from BU_History where BU_Status = 'Active' and BU_Time_Add < '$AweekAgo' ");
$DBD_rows = mysqli_num_rows($DBDeletionQry);

echo "Files older than two weeks: ".$DBD_rows."<br>";
$filesdeleted = 0;

for($i=0;$i<$DBD_rows;$i++){
    //Finds each file path
    $DBD_row = mysqli_fetch_assoc($DBDeletionQry);
    $BU_Path = "".$DBD_row['BU_Path'];
    $BU_Hist_num = $DBD_row['BU_Hist_num'];
    //Shows Paths
    echo $BU_Path."<br>";

    //Delete's File
    if(unlink($BU_Path)){$filesdeleted = $filesdeleted+1;}

    //Updates the Database
    $now = time();
    $DBDUpdate = $conn->query("update BU_History set BU_Time_Del = '$now',     BU_Status = 'Inactive' where BU_Hist_num = '$BU_Hist_num' ");

}//end for
echo "Files deleted: ".$filesdeleted."<br>";
?>

最后但并非最不重要的是，我使用我的cron管理器运行备份和删除备份.php文件。

使用PHP自动备份MySql数据库

1 个答案: